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Which of the following statements are true with regard to energy dissipation below a dam? (i) If the upper conjugate depth of a hydraulic jump is below the tailwater, little energy will be dissipated (ii) An upturned bucket will protect the dam from scour by moving material toward the dam. (iii) A secondary dam may increase tailwater height, thereby causing a hydraulic jump to form at the toe of the main dam. (v) A slopping apron above streambed level may be used to control the hydraulic jump so that it occurs on the apron. 
Which of the following assumptions is/are made in the analysis of hydraulic jump? 1. It is assumed that before and after jump formation the flow is essentially two-dimensional and that the pressure distribution is hydrostatic. 2. The length of the jump is small so that the losses due to friction on the channel floor are small and hence neglected. 3. The channel floor is horizontal or the slope is so gentle that the weight component of the water mass comprising the jump is very high.
‘Grand Slam’ refers to winning certain major tennis tournaments in a single calendar year. The name of the tournaments are A. Australian Open, French Open and US Open B. Australian Open, French Open, Wimbledon and US Open.  C. French Open, US Open and Wimbledon D. French Open, US Open, Wimbledon and Olympic
In a horizontal rectangular channel, a hydraulic jump with a sequent depth ratio of 5.6 is formed. This jump can be classified as
If the velocity of flow through a wide rectangular channel is 2m⁄s and the rate of change of depth is 3×10-5m, calculate the manning’s constant of the channel if the uniform flow depth is 1m and yn=0.6m. Given: Critical depth = 0.5m.
The ratio of Hydraulic radius and Hydraulic depth is ½ and the top width of the channel is 6m, calculate the hydraulic depth of the channel.
Calculate the corresponding hydraulic mean depth that would exist in the channel if the bed was unrippled. The rugosity coefficient in an unrippled channel is 0.015 and the rugosity coefficient actually observed by experiments on the rippled bed of channel is 0.020. Consider the value of hydraulic mean depth of the channel as 1.5 m.
Rita has the longest jump of 3 m 40 cm. Tanu is second. Her jump is 20 cm less than Rita's. Rihanna comes third. Her jump is only 5 cm less than Tanu's jump. By how many centimetres Rihana could not secure the first rank?
The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is
If the ratio of GVF depth to normal depth and the ratio of critical depth to normal are equal to 0.5, calculate the rate of change of depth if the bed slope of the channel is 1 in 1300.